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Prisma (, stylized as PRISMA) is a South Korean girl group formed by UnionWave Entertainment. The group consists of 5 members: Gyeongmin, Eunbyeol, Sally, Nia and Miriam. The group was debuted on 31 October 2020, with the song "Breakout".

Predebut
On March 2019, UnionWave announced global auditions to form a multinational music group. On December 2019, UnionWave revealed images of Gyeongmin, Chaerin and Najung.

On 27 January 2020, UnionWave revealed the group's original members: Gyeongmin, Najung, Chaerin, Nia and Miriam, along with his individual images.

On 8 June 2020, UnionWave announced that Chaerin left the company and the group due to health reasons.

On 20 June 2020, UnionWave announced the entry of a new member, 4 days later, Sally is revealed as the new member. On 26 August 2020, UnionWave announced that Najung left the company and the group due to personal reasons.

On 26 August 2020, UnionWave announced that on 1 September 2020 reveals the group's name and his Instagram profile.

On 5 September 2020, UnionWave annonced the entry of a new member, Eunbyeol. Eunbyeol was a trainee of the girl group Moonlight Girls, however, Eunbyeol never debuted with Moonlight Girls.

Debut
On 20 October 2020, UnionWave Entertainment published on YouTube a video teaser of the group's debut song, "Breakout". Other video teaser was published on 30 October 2020. Both teasers announced that the group will debut on 31 October 2020.

On 31 October 2020, UnionWave was released the music video of "Breakout". The song was released on digital platforms on 4 November 2020.